A5103025336- Cold Atom Physics and Bose-Einstein Condensates
- Physics of Superconductivity and Magnetism
- Quantum, superfluid, helium dynamics
- Quantum and electron transport phenomena
- Advanced Thermodynamics and Statistical Mechanics
- High-pressure geophysics and materials
- Superconductivity in MgB2 and Alloys
- Strong Light-Matter Interactions
- Phase Equilibria and Thermodynamics
- Iron-based superconductors research
- Quantum many-body systems
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Solidification and crystal growth phenomena
- Advanced Condensed Matter Physics
- Quantum optics and atomic interactions
- Experimental and Theoretical Physics Studies
- Material Properties and Failure Mechanisms
- Historical Astronomy and Related Studies
- Markov Chains and Monte Carlo Methods
- Organic and Molecular Conductors Research
- Occupational Health and Safety in Workplaces
- Philosophical Thought and Analysis
- International Relations in Latin America
- Advanced Frequency and Time Standards
Universidad Andrés Bello
2023
Universidad Nacional Autónoma de México
2008-2022
Instituto de Física del Sur
2017
Washington University in St. Louis
2003-2007
Instituto de Física La Plata
1996
Universitat de València
1992-1994
Mechatronics and Robotics (MaR) have recently gained importance in product development manufacturing settings applications. Therefore, the Center for Space Emerging Technologies (C-SET) has managed an international multi-disciplinary study to present, historically, first Latin American general review of industrial, collaborative, mobile robotics, with support North European researchers institutions. The methodology is developed by considering literature extracted from Scopus, Web Science,...
The critical pressures ${\mathit{P}}_{\mathit{c}}$ at which liquid $^{4}\mathrm{He}$ and $^{3}\mathrm{He}$ each become macroscopically unstable are determined from two kinds of microscopic calculations that reproduce the equation state. behavior sound velocity c around this pressure is analyzed, exponent in c\ensuremath{\propto}(P-${\mathit{P}}_{\mathit{c}}$${)}^{\ensuremath{\nu}}$ found to be \ensuremath{\nu}=1/4. A comparison with empirical analysis also done.
Cooper pairing in two dimensions is analyzed with a set of renormalized equations to determine its binding energy for any fermion number density and all coupling assuming generic pairwise residual interfermion interaction. \ Also considered are pairs (CPs) nonzero center-of-mass momentum (CMM)--usually neglected BCS theory--and their expanded analytically powers the CMM up quadratic terms. A Fermi-sea-dependent {\it linear} term dominates pair excitation weak (also called regime) while more...
We have investigated the nucleation rate at which cavities are formed in $^{4}\mathrm{He}$ and $^{3}\mathrm{He}$ negative pressures due to thermal fluctuations. To this end, we used a density functional that reproduces He liquid-gas interface along coexistence line. The inclusion of effects calculation barrier against results sizable decrease absolute value tensile strength above 1.5 K.
We study fermion pairing in a population-imbalanced mixture of ${}^{6}$Li atomic gas loaded three-dimensional lattice at very low temperatures. Using the number equation for each population, gap equation, and Helmholtz free energy, we determine gap, chemical potentials, pair-momentum as functions polarization. These parameters define stability regions Fulde-Ferrell-Larkin-Ovchinnikov phase, phase separation region where Bardeen-Cooper-Schrieffer normal phases coexist, Sarma when vanishes,...
Bose-Einstein condensation in an ideal (i.e. interactionless) boson gas can be studied analytically, at university-level statistical and solid state physics, any positive dimensionality (d>0) for identical bosons with positive-exponent (s>0) energy-momentum dispersion) relation. Explicit formulae arbitrary d/s are discussed for: the critical temperature (non-zero only if d/s>1); condensate fraction; internal energy; constant-volume specific heat (found to possess a jump discontinuity d/s>2)....
We obtain the thermodynamic properties for a noninteracting Bose gas constrained on multilayers modeled by periodic Kronig-Penney delta potential in one direction and allowed to be free other two directions. report Bose-Einstein condensation (BEC) critical temperatures, chemical potential, internal energy, specific heat, entropy different values of dimensionless impenetrability $P\ensuremath{\geqslant}0$ between layers. The BEC temperature ${T}_{c}$ coincides with ideal ${T}_{0}$ when $P=0$...
Disorder effects in the thermodynamic properties of a ideal Bose gas confined semi-infinite multi-layer structure %described by $M$ permeable barriers within box thickness $L$ and infinite lateral extent, are analyzed. The layers first modeled periodic array Dirac delta-functions equal intensity. Then, we introduce structural compositional disorder, as well random set layer vacancies system to calculate internal energy, chemical potential specific heat for different configurations. Whereas...